Home / 4,860-7,290.45-1,938.53

Finding the Fourth Proportional to 4,860, 7,290.45 and 1,938.53

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Solution

The fourth proportional to 4,860, 7,290.45 and 1,938.53 is: 2,907.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,860 : 7,290.45 = 1,938.53 : x
  2. Step 2: Convert to fraction form
    4,860/7,290.45 = 1,938.53/x
  3. Step 3: Cross multiply
    4,860x = 7,290.45 × 1,938.53
  4. Step 4: Simplify right side
    4,860x = 14,132,756.04
  5. Step 5: Solve for x
    x = 14,132,756.04/4,860
  6. Step 6: Final answer
    x = 2,907.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.